Kaettekita Motoyuusha

Kaettekita Motoyuusha summary: A brave hero received a call to venture into a foreign land with the one mission of defeating the demon king. Honored for his achievements, he managed to emerge victorious after going through a brutal three-year war and eventually vanquished the demon ruler. However, he had to leave the realm ceremoniously after his victory. "How vexing! I had the chance to see elves, beasts, dwarves, and even demons, all exquisite beings within the new land but now only battles and a world with no charm await me." Fueled by his frustrations, the hero decided to make a solo return to the world beyond. With no threat of being sent back, he pledged to make his way in those magical lands by creating his own harem.